Compound of aluminum, carbon, and nitrogen.



SAMUEL PEACOCK, OF CHICAGO, ILLINOIS, ASSIGNOB TO E. I. DU FONT DENEMOURS POWDER coMrAnY, A CORPORATION on NEW nnsEY.

COMPOUND OF ALUMINUM, CARBON A'ND NITROGEN.

No Drawing.

To all "whom it may concern: I

Be it known that I, .SAMUEn PEACOCK, a

citizen of the United. States, residing at Ch1cago, 1n the county ofCook and State of n duced accordingto the following equation Illinois,have invented certain new and useful Improvements in Composition ofMatter; and Ijdo' hereby declare the following to be a full, clear, and.exact description of the invention, such as will enable others skilledin the art to which it appertains to make and use the same.

.This invention relates to a composition of mattercomposed-of aluminum,carbon and nitrogen having the formula Al c N This product may beproduced as follows :-Finely divided alumina and carbon are thoroughlymixed in the proportions of 102 parts by weight of alumina to 72 partsof carbon, and the mixture is fed into a suitable furnace from which theair is excluded and into which nitrogen gas 18 continuously fed. Thematerials are employed in a dry condition, and in some cases I find itvery desirable to employ an excess of carbon over that necessary tosatisfy the equation below of from to per cent. in order to prevent .theformation of an aluminum nitrid havriously affect the process.

ing the formula Al N Further, such excess while insuring the formationof the first mentioned nitrid above, does not in u- After the mixtureand nitrogen are brought into the furnace from which all free oxygen isexcluded, I preferably lower the pressure as by means of a pump to say500 millimeters of mercury, which has the effect of causing the,substances to react at Specification of Letters Patent.

Patented July 2, 1912.

Application filed September 23, 1911. Serial No. 650,972.

about 1500 C. The said substances are next suitably heated by anysuitable means until the reactiontemperature is reached when the saidfirst-mentioned nitrid is proall as is fully disclosed in my copendingapplication Serial No. 650,973 filed Sept. 23,

1911 and entitled Process of producing comsubjected to the action of'steam in a closed vessel at about five atmospheres pressure.

A process of thus'producing ammonia'is claimed in my co-pendirigapplication #650,974, of even date herewith. What I claim is 1. The"herein described chemical com pound containing aluminum, carbon andnitrogen and adapted to give 01f ammonia gas when subjected to steam athigh pressures, substantially as described.

2. The herein described composition of matter containing only aluminum,carbon and nitrogen having the formula Al c N and adapted to give ofiammonia gas when subjected to steam at high pressures, substantially asdescribed.

In testimony whereof I aii'ix my signature in presence of two witnesses.

SAMUEL PEACOCK. Witnesses: T. A. WITHERSPOON, GEO. B. -PITTS.

